Deconjugation of Dehydroamino Acids: Stereoselective Synthesis of Racemic (<i>E</i>)-Vinylglycines
作者:Paul A. Alexander、Stephen P. Marsden、Dulce M. Muñoz Subtil、John C. Reader
DOI:10.1021/ol052139q
日期:2005.11.1
[reaction: see text] A practical and general two-step synthesis of carbamate-protected (E)-vinylglycines from aliphatic aldehydes is reported. The key step involves the kinetic alpha-protonation of dianionic dienolates derived from dehydroamino acids.
[反应:见正文]据报道,从脂肪族醛中合成氨基甲酸酯保护的(E)-乙烯基甘氨酸的实用且通用的两步过程。关键步骤涉及衍生自脱氢氨基酸的二阴离子二烯酸酯的动力学α-质子化。